E.D. Tex.

The United States District Court for the Eastern District of Texas (E.D. Tex.) is a federal court within the Fifth Circuit, though appeals for patent claims are heard by the Federal Circuit. The court maintains divisions in Beaumont, Lufkin, Marshall, Plano, Sherman, Texarkana, and Tyler, with Tyler serving as the headquarters. The E.D. Tex. has consistently been one of the busiest patent litigation venues in the United States. In 2025, it ranked as the top district for overall patent litigation, accounting for 27.7% of all filings, and was also the most popular venue for cases brought by Non-Practicing Entities (NPEs), representing 44.2% of such filings. This marks a resurgence in patent filings after a notable decline following the Supreme Court's 2017 TC Heartland decision, which restricted patent venue options.

The E.D. Tex. has a long-standing reputation as a "rocket docket" due to its expeditious handling of patent cases. Historically perceived as a plaintiff-friendly venue, especially for patent holders, the court's juries delivered six of the ten largest patent damage awards in 2025, with verdicts ranging from $78.5 million to $445.5 million. While motions to transfer venue out of the district have traditionally been largely denied, the Federal Circuit has increased its scrutiny in recent years, leading to more mandamus petitions being granted for transfers. Despite this, transfer motions typically do not delay fact discovery in the district.

The court operates under comprehensive Local Patent Rules (LPRs), outlined in Section V of its Local Rules, which govern all patent-related civil actions. These rules mandate specific disclosures for asserted claims, infringement contentions, invalidity contentions, and a structured claim construction process, including deadlines for exchanging proposed terms and preliminary constructions. In October 2019, the court implemented new rules establishing additional procedures for challenging patent eligibility, requiring detailed contentions and supporting evidence to be filed concurrently with invalidity contentions. Furthermore, the E.D. Tex. offers an optional "Track B" fast-track schedule designed to accelerate cases through front-loaded discovery and contentions, proving attractive for plaintiffs with well-developed infringement theories.

While the provided tracked cases (e.g., Cyberfone Systems, LLC v. Capital One Financial Corporation) are from 2014 and terminated, the more recent landscape of E.D. Tex. patent litigation is characterized by high-stakes jury verdicts and increased judicial attention to procedural fairness. For example, the aforementioned high-dollar jury awards in 2025 underscore the significant financial outcomes possible in this forum. Concerns regarding transparency have also emerged, with the Electronic Frontier Foundation (EFF) recently challenging sealing practices in patent cases that obscured details about patent ownership and standing.

Among the prominent judges presiding over patent litigation in the Eastern District of Texas, Chief Judge Rodney Gilstrap, based in Marshall, is consistently recognized as the nation's busiest patent judge. In 2025, Judge Gilstrap oversaw 19% of all new patent litigation and presided over five of the year's top ten patent damage awards. Chief Judge Amos L. Mazzant III, based in Sherman, is the current Chief Judge of the district and has been instrumental in recent case assignment orders. Judge Robert W. Schroeder III, situated in Texarkana, also ranked among the top district judges for patent litigation filings in 2025. Other active judges handling patent cases include J. Campbell Barker, Ron Clark, Marcia A. Crone, Jeremy D. Kernodle, Richard Schell, Michael J. Truncale, and Sean D. Jordan.